Is Google's rate of shutting down products really high or is this some cognitive bias (more headlines, more prominent products, higher number of products in the first place etc.)?
If Google wants to play in the automotive space they need to have 20 years between announced shutdown and discontinuation, with 5 of those years being for automakers to transition, then the next 15 of support for people who have cars. Move fast and break things doesn't fly in the safety matters world of cars.